# Relationship history for MSHA mine 4100867

Current hierarchy: **Mohawk Industries Inc → Dal-Tile Corporation → TP CLAIMS 1 & 2 /ROSA BLANCA**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Texas Talc Company → TP CLAIMS 1 & 2 /ROSA BLANCA; 1950-01-01 to 1990-01-10; source msha-controller-operator-history
- **controller_controls_mine:** Robert G  Brittingham → TP CLAIMS 1 & 2 /ROSA BLANCA; 1950-01-01 to 1990-01-10; source msha-controller-operator-history
- **controller_controls_operator:** Robert G  Brittingham → Texas Talc Company; 1950-01-01 to 1990-01-10; source msha-controller-operator-history
- **operator_operates_mine:** Dal-Minerals Company → TP CLAIMS 1 & 2 /ROSA BLANCA; 1990-01-11 to 2000-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Dal-Tile International Inc → TP CLAIMS 1 & 2 /ROSA BLANCA; 1990-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dal-Tile International Inc → Dal-Minerals Company; 1990-01-11 to 2000-03-05; source msha-controller-operator-history
- **operator_operates_mine:** American Talc Company → TP CLAIMS 1 & 2 /ROSA BLANCA; 2000-03-06 to 2017-07-19; source msha-controller-operator-history
- **controller_controls_mine:** John  Wold et al → TP CLAIMS 1 & 2 /ROSA BLANCA; 2000-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Wold et al → American Talc Company; 2000-03-06 to 2017-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Mohawk Industries Inc → TP CLAIMS 1 & 2 /ROSA BLANCA; 2017-05-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dal-Tile Corporation → TP CLAIMS 1 & 2 /ROSA BLANCA; 2017-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mohawk Industries Inc → Dal-Tile Corporation; 2017-07-20 to current/open; source msha-controller-operator-history